CPC H04R 1/2826 (2013.01) [H04R 1/025 (2013.01); H04R 1/026 (2013.01); H04R 1/288 (2013.01); H04R 1/323 (2013.01); H04R 2201/021 (2013.01)] | 13 Claims |
1. A sound emitting apparatus comprising:
a speaker unit; and
an enclosure of the speaker unit having an aperture configuring a Helmholtz resonator, wherein a resonance frequency Fr of a Helmholtz resonator is set to be equal to or higher than a reproducible lower limit frequency of the speaker unit,
wherein a width A of the enclosure and a wavelength λ of a sound wave corresponding to the resonance frequency Fr satisfy the following formula (C):
A≥0.5λ. (C).
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